MESON Chess Problem Database

Problem Display
PID: 31739 (3Q1K2/3pBB2/8/2Rrk3/2p1r1p1/8/bb1P1Np1/5R2 w - - 0 1)

Rowland, Frideswide F (Mrs TB, nee Beechey)

Illustrated London News, 0000

3Q1K2/3pBB2/8/2Rrk3/2p1r1p1/8/bb1P1Np1/5R2

#2

8 + 9

3467 Chess Blossoms 1883
4760 200 Classic Chess Puzzles 1993

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rxd5#
    • 1...Rf4
      • 2.Rxd5#
  • Tries
    • 1.Sd3+?
      • 1...Kd4
        • 2.Rxd5#
      • 1...cxd3!
    • 1.Sxg4+?
      • 1...Kd4
        • 2.Rxd5#
      • 1...Rxg4!
    • 1.Bg5?
      • threat
        • 2.Rxd5#
        • 2.Qf6#
      • 1...Kd4
        • 2.Rxd5#
      • 1...Kd6
        • 2.Qc7#
      • 1...Rxc5
        • 2.Qf6#
      • 1...Rd4
        • 2.Qf6#
      • 1...Rf4
        • 2.Rxd5#
      • 1...Ba3
        • 2.Qf6#
      • 1...c3
        • 2.Qf6#
      • 1...Kf5!
    • 1.Bd6+?
      • 1...Kd4
        • 2.Rxd5#
      • 1...Kxd6
        • 2.Qc7#
      • 1...Kf5!
  • Keys
    • 1.Bh4!
      • threat
        • 2.Qf6#
      • 1...Kd4
        • 2.Rxd5#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kf5
        • 2.Qg5#
      • 1...Kd6
        • 2.Qc7#
      • 1...Rf4
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(h);N_SPINR(g),S_FLIGHT::R1(D),XR(g)
    • R(e);P_PINB(F),SBLOCK::R1(D),XR(g)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(h);N_SPINR(g),S_FLIGHT::R1(D),XR(g)
      • Refutation
        • P(d);XS(C)
    • Try
      • S(C);CHECK,XP(f)
      • Vars
        • K(h);N_SPINR(g),S_FLIGHT::R1(D),XR(g)
      • Refutation
        • R(e);XS(C)
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(h);N_SPINR(g),S_FLIGHT::R1(D),XR(g)
        • K(h);N_SPINR(g),P_SPINP(i),S_FLIGHT::QAB1(G)
        • R(g);N_SPINR(g),XR(D)::QAB1(G)
        • R(e);SBLOCK::QAB1(G)
        • R(e);P_PINB(F)::R1(D),XR(g)
        • B(b);P_PINR(D)::QAB1(G)
        • P(d);::QAB1(G)
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • B(E);CHECK
      • Vars
        • K(h);N_SPINR(g),S_FLIGHT::R1(D),XR(g)
        • K(h);N_SPINR(g),P_SPINP(i),S_FLIGHT,XB(E)::QAB1(G)
      • Refutation
        • K(h);P-FLIGHT
  • Actual
    • B(E);
    • Threat
      • QAB1(G)
    • Vars
      • K(h);N_SPINR(g),S_FLIGHT::R1(D),XR(g)
      • K(h);N_SPINR(g),S_FLIGHT::R(A)+S(C),DCHECK
      • K(h);P-FLIGHT::QAR1(G)
      • K(h);N_SPINR(g),P_SPINP(i),S_FLIGHT::QAB1(G)
      • R(e);P_PINB(F),SBLOCK::R1(D),XR(g)
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